Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/20096#discussion_r160546427
--- Diff:
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaContinuousSuite.scala
---
@@ -0,0 +1,135 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.kafka010
+
+import java.util.Properties
+import java.util.concurrent.atomic.AtomicInteger
+
+import org.scalatest.time.SpanSugar._
+import scala.collection.mutable
+import scala.util.Random
+
+import org.apache.spark.SparkContext
+import org.apache.spark.sql.{DataFrame, Dataset, ForeachWriter, Row}
+import org.apache.spark.sql.execution.datasources.v2.DataSourceV2Relation
+import org.apache.spark.sql.execution.streaming.StreamExecution
+import
org.apache.spark.sql.execution.streaming.continuous.ContinuousExecution
+import org.apache.spark.sql.streaming.{StreamTest, Trigger}
+import org.apache.spark.sql.test.{SharedSQLContext, TestSparkSession}
+
+trait KafkaContinuousTest extends KafkaSourceTest {
--- End diff --
Add docs to explain what this class if for.
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